/*
 * Utility.java
 *
 * Stateroom - Java framework library for finite state machines
 * Copyright (C) 2009 by Matthew Werny
 * All Rights Reserved
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
package net.iceflow.stateroom;

/**
 * Utility class containing static methods used generically by Stateroom.
 */
public class Utility {
	
	/**
	 * Validates that the passed in object is not null.
	 * @param object Object instance to validate
	 * @param exceptionMessage Text of the message to be used for creating an exception, should the object be found to be null.
	 */
	public static void validateNotNull(final Object object, final String exceptionMessage) {
		if (object == null) {
			throw new IllegalArgumentException(exceptionMessage);
		}
	}
	
	/**
	 * Constructor that prevents instantiation, as this is purely a utility class.
	 */
	protected Utility() {
		throw new UnsupportedOperationException("Instantiation not allowed.");
	}
}
